Control for weft carriers



Feb. 22, 1944. P. DES ROCHES 2,342,182

CONTROL FOR WEFT CARRIERS Filed May 19 1943 INVENTOR Pa/se va/fitS/EO 0%68 ATTORNEYS Patented Feb. 22, 1944 UNITED STATES ATEENT OFFICE CONTROL FOR WEFT CARRIERS Parseval Des Roches, North Providence, R. I.

Application May 19, 1943, Serial No. 487,573

4 Claims.

This application relates to a releasing mechanism for a weft carrier magazine particularly of the stationary multi-color type.

In such magazines a selected weft carrier is advanced to transfer position and is held yieldingly in such position for transfer to the indicated shuttle. If the shuttle becomes improperly positioned'in the shuttle box a jam may occur between the lay and the improperly positioned shuttle striking the frame plate of the magazine and in many instances will break this frame plate which requires a rather lengthy repair operation to replace the frame plate.

One of the objects of this invention is to provide a different arrangement of frame plate and bottom support so that some give will occur and breaking of the frame plate will be prevented.

Another object of this invention is to cut off the portion of the frame plate where breaking occurs and to provide a separate member to replace this cut away portion of the frame plate and mount this member so that it will guide the bobbin as the frame plate did heretofore and yet this member may move in case struck by the shuttle which may have been improperly posi- I tioned in the shuttle box.

Another object of the invention is to mount the guiding member yieldingly with reference to the frame plate.

A more specific object of the invention is to carry this guide member on the giveway which supports the bobbin or weft carrier which is yieldably mounted and permits movement if struck by an improperly positioned shuttle.

With these and other objects in view, the invention consists of certain novel features of construction, as will be more fully described and particularly pointed out in the appended claims.

In the accompanying drawing:

Fig. 1 is a side elevation of a portion of a magazine illustrating the frame plate with the releasing mechanism for the weft carrier as equipped with a guiding member for the weft carrier and also illustrating in section a portion of the lay and shuttle box with a shuttle therein in its relation thereto;

Fig. 2 is a section on line 2-2 of Fig. 1 of the giveway alone;

Fig. 3 is a perspective view of the giveway;

Fig. 4 is a view similar to Fig. 1 illustrating the action of a misplaced shuttle as creating a jam between the lay and the giveway.

Referring to the drawing, I have shown a portion of a stationary magazine frame plate Ill having a projection H to which a stand 12 may be secured in any convenient manner. The weft carrier supporting member I3 is pivoted at M to the outer end of an arm 1 5 which in turn is pivotally mounted upon a stud I6 fixed in the stand l2. The weft carrier engaging portion ll of the member I3 normally. projects forwardly in an inclined position,- supporting an indicated weft carrier W in the position shown in Fig. l.

The normal position of the member 13 is determined by an adjustable stop. screw 18 threaded in a lug on the arm I5 and engaging a fixed projection IS on the stand l2. A coil spring 2%) acts on the hub of the arm 15 to hold the stop i8 yieldingly against the projection It). The arm I5. also has. a rearwardly projecting portion 2| connected by a .tension spring 22 with the rear or outer end 23.01 the member 13.

The rear portion 23 of the member [3 is bifurcatedproviding a pair of arms 24 which re ceive a stud 25 extending through a slot 26 in a link Z'Lthe upper end of which is pivoted as at 28 to the stand 12. The link is preferably offset, as shown in the drawing, and is provided with an adjusting screw 29 and lock nut 30. The screw 29 projects into the slot 26 and adjustably determines the lost motion between the link 2'! and stud 25.

The lay is designated generally 3| and carries a shuttle box 32 for the reception of a shuttle 33. The lay swings to a position such as shown in Fig. 1 so that the hammer operating through the slot 34 may drive the weft carrier or bobbin into its position in the shuttle. Under normal conditions the parts occupy the position shown in Fig. l, supporting an indicated weft carrier W before transfer. Time is allowed for a transfer to occur if no revocation prevents.

It is usual for the plate |0,.as shown in Figs. 1 and 2, to have a portion similar to portion 35 on the right-hand side of the slot 34 but I have modified this plate by causing an absence of any portion on the right-hand side of the slot corresponding to the portion 35 at the left of the slot. Thus,.the right-hand lower edge of the plate Ill terminates at 36. This plate serves as a guide for the end of one of the weft carriers or bobbins in its movement from its position in the magazine to its point of support as shown at W prior toinsertion into the shuttle. In order that the weft carrier may be guided after it moves to a position lower than the edge 36 of the frame plate I have provided a guide member 31 which is positioned so that its guiding surface will be in the same plane with the guiding surface of the frame plate It. The

member 31 when in raised position will be in edge to edge contact with the lower edge 36 of the frame plate ID. This member 31 is mounted upon the giveway l3 or supporting member for the weft carrier bobbin and may conveniently be formed as an integral part with this giveway or support I3 for the weft carrier.

The pivot I4 is threaded onto the arm l5 and is headed as at 39 beneath which head there is a spring 40 which urges the giveway H to cause the guide member 31 to align with the plate l0.

In Fig. 4 the shuttle 33, which normally houses in the box 32 as shown in Fig. 1, is illustrated as misplaced and in a position so that the swinging of the lay will cause this shuttle to engage the lower part of the carrier magazine. However, with the portion of the magazine frame plate cut away or terminating as shown in Fig. 1 the shuttle will strike the giveway l3 raising it until the guide member 31 contacts in an edge to edge relation with the lower edge 36 of this plate and then will slide the giveway l3 and this guide member, which is permitted by reason of the resilient mounting of the giveway, to the left as shown in Fig. 4 a distance equal to the width of the guide slot 34 which in many instances will be sufficient to prevent a breaking of any part of the loom. However, if the break does occur the break would then occur of the giveway rather than of the plate I 0, which giveway is ,a very simple matter to replace inasmuch as it is readily accessible to the loom fixer.

From the foregoing it will appear that I have provided an arrangement which will prevent breaking of the magazine frame plate which is difficult and expensive to replace and have provided such an arrangement that breaking of the parts will in most cases not occur but in such cases as they do occur the break will be of a small easily replaceable part rather than the expensive complicated part of the frame plate. Thus a loom will be out of operation because of such a break a minimum of time.

I claim:

1. In a loom having a weft carrier magazine, a stationary frame plate presenting a surface to engage and act as a guide for the end of a shuttle bobbin, a member having a surface in a plane to act as an extension of the guiding surface for the end of the bobbin and means to movably mount said member below the lower edge of the said frame plate and above the path of the swing of the lay whereby said member may be moved upon being struck by a misplaced shuttle.

2. In a loom having a weft carrier magazine, a stationary frame plate presenting a surface to engage and act as a guide for the end of a shuttle bobbin, a member having a surface in a plane to act as an extension of the guiding surface for the end of the bobbin and means to movably mount said member in edge to edge adjacency with and below the lower edge of the said frame plate and above the path of the swing of the lay whereby said member may be moved upon being struck by a misplaced shuttle.

3. In a loom having a weft carrier magazine, a stationary frame plate presenting a surface to engage and act as a guide for the end of a shuttle bobbin, a member having a surface in a plane to act as an extension of the guiding surface for the end of the bobbin and means to movably mount said member below the lower edge of the said frame plate and above the path of the swing of the lay, means to resiliently hold said member in such position whereby said member may be yieldingly moved upon being struck by a misplaced shuttle.

4. In a loom having a weft carrier magazine, a stationary frame plate presenting a surface to engage and act as a guide for the end of a shuttle bobbin, a giveway for supporting the bobbin, means for movably mounting said giveway a guide member having a surface in a plane to act as an extension of the guiding surface for the end of the bobbin, said member being mounted on said giveway to move therewith upon being struck by a misplaced shuttle.

PARSEVAL DES ROCHES. 

